import axios from 'axios'
import Qs from 'qs'
import { Message } from 'element-ui'
// import store from '@/store'
import { getToken, removeToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    console.log(config)
    config.headers['token'] = getToken() || ''
    if (config.method === 'post') {
      if (config.headers['Content-Type'] !== 'application/json') {
        config.headers['Content-Type'] = 'application/x-www-form-urlencoded'
        config.data = Qs.stringify(config.data)
      }
    } else {
      config.params = config.data
    }
    return config
  },
  error => {
    // Do something with request error
    Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 0, it is judged as an error.
    if (res.code !== 0) {
      Message({
        message: res.msg || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === -1) {
        // to re-login
        removeToken()
        window.location.hash = '#/login'
      }
      return Promise.reject(new Error(res.msg || 'Error'))
    } else {
      if (!res.success) {
        Message({
          message: res.msg || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
      }
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
